| // Copyright 2016 PDFium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
| |
| #include "core/fxge/win32/cpsoutput.h" |
| |
| #include <algorithm> |
| |
| #include "core/fxcrt/fx_system.h" |
| |
| CPSOutput::CPSOutput(HDC hDC, OutputMode mode) : m_hDC(hDC), m_mode(mode) {} |
| |
| CPSOutput::~CPSOutput() {} |
| |
| bool CPSOutput::WriteBlock(const void* str, size_t len) { |
| int sent_len = 0; |
| while (len > 0) { |
| char buffer[1026]; |
| size_t send_len = std::min(len, static_cast<size_t>(1024)); |
| *(reinterpret_cast<uint16_t*>(buffer)) = send_len; |
| memcpy(buffer + 2, static_cast<const char*>(str) + sent_len, send_len); |
| |
| switch (m_mode) { |
| case OutputMode::kExtEscape: |
| ExtEscape(m_hDC, PASSTHROUGH, send_len + 2, buffer, 0, nullptr); |
| break; |
| case OutputMode::kGdiComment: |
| GdiComment(m_hDC, send_len + 2, reinterpret_cast<const BYTE*>(buffer)); |
| break; |
| } |
| sent_len += send_len; |
| len -= send_len; |
| } |
| return true; |
| } |
| |
| bool CPSOutput::WriteString(const ByteStringView& str) { |
| return WriteBlock(str.unterminated_c_str(), str.GetLength()); |
| } |